Mesut Ozil and Sead Kolasinac are not in Arsenal's squad for Sunday's Premier League game at Newcastle because of "further security incidents".
The pair were involved in a carjacking attempt by an armed gang in north-west London a fortnight ago.
Arsenal say they are liaising with police and "providing the players and their families with ongoing support".
"The welfare of our players and their families is always a top priority," the club added.
"We have taken this decision following discussion with the players and their representatives.
"We look forward to welcoming the players back to the squad as soon as possible."